expat here.. I havent moved with the kids.. Kids where born here. But we both still expats with kids. I dont know your current conditions and how is your family support back home. If you have it, you will miss it. We miss the grandparents help a lot. They often travel here and we wish we had them closer most of the times. But thats the only negative thing i guess. Other than that its all good. Kids learn several languages and are exposed to different situations that i firmly believe makes you mature in some way. I personally believe that everyone should move out of their countrie for at least some years.